Based on a system that tracks the frequency of words and phrases in print, electronic and social media, London has officially claimed the top spot - which New York had claimed for several years - after a surge in media interest which was fuelled by the tragic suicide of British designer Alexander McQueen, and the Duchess of Cambridge's stylish nuptials, which have turned her into a global fashion icon.

"We are seeing what the impact of two genuine media stars can have upon a global ranking. Our numbers show that it was their presence that tipped the victory to London over New York,'' says Bekka Payack, of Global Language Monitor.

Following London and New York, Paris came in at number three in the fashion capital list, followed by Milan and Los Angeles, while Berlin and Singapore broke into the top 10 for the first time since the survey began eight years ago.